Device for the attendance of an embroidery machine



Aug. 29, 1967 w. KOBELT 3,338,195

DEVICE FOR THE ATTENDANCE OF AN EMBROIDERY MACHINE Filed Oct. 20, 1965 3SheetsSheet l HIH llH

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lNVE/V rma WALTER K a BELT QMMJQM A TTO KNEY Aug. 29, 1967 w. KOBELT3,338,195

DEVICE FOR THE ATTENDANCE OF AN EMBROIDERY MACHINE Filed Oct. 20, 1965 3Sheets-Sheet 2 INVENTOIQ WALTER 0 BELT Aug. 29, 1967 w. KOBELT 3,338,195

DEVICE FOR THE ATTENDANCE OF AN EMBROIDERY MACHINE Filed Oct. 29, 1965 5Sheets-Sheet 3 lNVEA/Td/i WALTER KOBEL. T

E) 4W 4' M ATTBRA E/ United States Patent Office 3,338,195 Patented Aug.29, 1967 3,338,195 DEVICE FOR THE ATTENDANCE OF AN EMBROIDERY MACHINEWalter Kobelt, Arbon, Switzerland, assignor to Adolph Saurer Ltd.,Arbon, Switzerland Filed Oct. 20, 1965, Ser. No. 498,809 Claimspriority, application Switzerland, Nov. 3, 1964, 14,174/64 2 Claims.(Cl. 112-83) This invention concerns a device for the attendance of theembroidery operation of an embroidery machine, the device permittingeasy access to the fabric frames on the machines.

An arrangement of running boards is commonly used for the attendance ofembroidery machines. These running board attendance devices have thedisadvantages of hindering access for the attendance to the operationson the lower fabric frame of the embroidery machine. The application ofhinged running boards has been suggested, e.g running boards which canbe opened, to alleviate this condition of no access, but these hingedrunning boards are not completely satisfactory, especially for machinesdesigned for a large stitching height and known as the high modelembroidery machine.

The purpose of this invention is to provide an attendance device whichwill permit unimpeded attendance both on the lower and upper fabricframe of an embroidery machine incorporating these frames, and toprovide easy and convenient accessibility and safety in the attendanceof the embroidery machine.

This purpose is achieved by providing a novel ladder structure servingas a station which can be displaced along the embroidery machine andwhich is supported by two guides, at least one of these guides beingfastened to the machine frame. Preferably the top guide extends over theentire length of the machine, but both guides may so extend. The ladderis swivel-mounted to assume various operative positions and is providedwith a clamp device which intermeshes with a driven pulling mechanismattached to the embroidery machine in order to move the ladderpositively, by the choice and under the control of the operator. Theladder is provided with a brake or an arresting device to make it moreuseful.

The object of the invention is illustrated by way of eX- ample in theaccompanying drawing in which:

FIGURE 1 shows the arrangement of a ladder on the left side of anembroidery machine;

FIGURE 2 illustrates a cross section of line II of FIGURE 1;

FIGURE 3 is a partial cross section of the embroidery machine with asomewhat different construction of the ladder as compared to FIGURE 1;

FIGURE 4 shows the front side of a ladder with additional parts; and

FIGURE 5 is a side View of FIGURE 4.

The side pedestal 1 and the beam pedestal 2 are connected with the topand bottom beams 3 and 4 (FIG. 1). Between the two top and bottom beams3 and 4, the fabric frame is hung up in the commonly known manner, butthis is not further illustrated. The fabric frame 5 supports the fabricrollers 6 which take up the embroidered fabric 7 The top guide rail 8and the bottom guide rail 9 (FIG. 2) are supported by extensions 10 and11 which are attached to the beams 3 and 4. The construction as per FIG.3 provides [for a direct attachment of the bottom guide rail 12 to thelower part of the beam pedestal 2.

The spools 13 and the thread rollers 14, as well as the thread guiderods 15 and the needles 16 with supports 17, are illustrated on theright side of FIG. 2. The endless traction cable 19, which is guidedover the rollers 18 (FIG. 1), is continuously driven and extends overthe length of the embroidery machine.

A ladder 20 is provided on each side, front and back, of the embroiderymachine, and this ladder is fashioned as illustrated in the side View inFIGS. 2 and 5, or FIG. 3. In the construction illustrated in FIGS. 2 and5, the bars 33 run at acute angles to each other, whereas FIG. 3 showsthem arranged parallel to each other. Approximately from the middle ofthe ladder 20 upwards, the side hand grip rods 21 are arranged on thebars 33. The lower half of the bars 33 contain the footboa-rds 22. Thesupport 31 (FIG. 2), which extends from the rear of a footboard to therear bars 33, is provided to hold a spool or shuttle container 32. Theupper and lower parts of the ladder 20 bear against the rollers 23 and24, the top rollers 23 being of convex shape on the running surface tofit the guide rail 8. The rollers 24 are supported above the floor.

In FIG. 2, an arrow indicates how the ladder is swivelled and in thisposition is moved across the beam pedestals 2 to the next machinesection. The modification as per FIG. 3 does not require the ladder tobe swivelled. It can be moved freely along the entire length of theembroidery machine.

According to FIGS, 4 and 5, the ladder 20 is provided with a clampdevice 26, 27 which engages the traction cable 19 by transmission fromthe twin lever 25 over the rod 29 both being mounted on the ladder. Forits operation, the twin lever 25 is provided with two pedals 28. In theillustrated position of the lever 25, the top' clamp 26 is disengagedand the bottom clamp 27 is operational, effecting a displacement of theladder 21 to the left when the traction cable 19 is in motion. Bydepressing the right pedal 28 in FIG. 4, the bottom clamp 27 isdisengaged via the rod 29 and the top clamp becomes operational. Settingthe lever 25 in its middle position permits the cable 19 to slide in theclamps 26, 27. Consequently, the ladder can be moved by hand. The ladder20 can also be held in any desired position by means of the brake devicecoacting on the upper guide rail.

I claim:

1. An attendance device of a shuttle embroidery machine having a machineframe, upper frames for holding the fabric and lower frames for holdingthe fabric, said frames extending along the length of said machine, saiddevice comprising: a swivelly mounted ladder serving as a station, saidladder being movable along the length of the embroidery machine; twoguides forming a guide assembly, one above the other, corresponding tosaid upper and lower fabric frames; means fastening at least one of saidguides to said machine frame to anchor the guide assembly to saidmachine; means on said ladder riding upon and supporting said ladder onsaid guides; driving means for moving said ladder along said guides; apulling mechanism comprising an endless cable supported on and extendingthe length of the machine frame and driven by said driving means; andclamping means mounted on said ladder in position to engage said cable,the movement of said clamping means being under the control of theoperator.

2. A device as claimed in claim 1, wherein said ladder has a brakedevice which engages one of said guides to lock said ladder.

References Cited UNITED STATES PATENTS 662,108 11/ 1900 Balfour 182-38972,576 10/1910 Scully 18238 1,444,759 2/ 1923 Traylor 182-3 8 X FOREIGNPATENTS 48,040 5/ 1911 Austria.

JORDAN FRANKLIN, Primary Examiner. A. R. GUEST, Assistant Examiner.

1. AN ATTENDANCE DEVICE OF A SHUTTLE EMBROIDERY MACHINE HAVING A MACHINEFRAME, UPPER FRAMES FOR HOLDING THE FABRIC AND LOWER FRAMES FOR HOLDINGTHE FABRIC, SAID FRMAES EXTENDING ALONG THE LENGTH OF SAID MACHINE, SAIDDEVICE COMPRISING: A SWIVELLY MOUNTED LADDER SERVING AS A STATION, SAIDLADDER BEING MOVABLE ALONG THE LENGTH OF THE EMBROIDERY MACHINE; TWOGUIDES FORMING A GUIDE ASSEMBLY, ONE ABOVE THE OTHER, CORRESPONDING TOSAID UPPER AND LOWER FABRIC FRAMES; MEANS FASTENING AT LEAST ONE OF SAIDGUIDES TO SAID MACHINE FRAME TO ANCHOR THE GUIDE ASEMBLY TO SAIDMACHINE; MEANS ON SAID LADDER RIDING UPON AND SUPPORTING SAID LADDER ONSAID GUIDES; DRIVING MEANS FOR MOVING SAID LADDER ALONG SAID GUIDES; APULLING MECHANISM COMPRISING AN ENDLESS CABLE SUPPORTED ON AND EXTENDINGTHE LENGTH OF THE MACHINE FRAME AND DRIVEN BY SAID DRIVEN MEANS; ANDCLAMPING MEANS MOUNTED ON SAID LADDER IN POSITION TO ENGAGE SAID CABLE,THE MOVEMENT OF SAID CLAMPING MEANS BEING UNDER THE CONTROL OF THEOPERATOR.